CONFidence 2020 Teaser CTF: Chromatic Aberration

In this CTF Question, author introduced a OOB read and arbitary write to the Array.fill of the V8 engine. So, our exploitation will be very straightforward. First, we will set up an array of BitInts with 0x33313131 as marking for arbitary write after we collect sufficient primitive with the OOB....

July 1, 2020 ยท wwkenwong